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Cu-Ti3AlC2 composite material and preparation method thereof

A composite material and mixing technology, which is applied in the field of Cu-Ti3AlC2 composite material and its preparation, can solve the problems of insufficient hardness and poor strength, and achieve the goal of improving electrical conductivity and mechanical properties, improving bending strength, and increasing compactness Effect

Inactive Publication Date: 2019-01-11
BENGBU COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Metal Cu is widely used in power transmission systems due to its good electrical and thermal conductivity; however, due to its relatively poor strength and insufficient hardness, the application of this material to electrical contact elements is subject to certain restrictions.

Method used

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  • Cu-Ti3AlC2 composite material and preparation method thereof
  • Cu-Ti3AlC2 composite material and preparation method thereof

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Embodiment Construction

[0017] A kind of Cu-Ti 3 AlC 2 Composite material, with metal copper powder as the matrix phase and ceramic phase Ti 3 AlC 2 In order to strengthen the phase, the volume percentage of metallic copper powder in the composite material is 60%; the Cu-Ti 3 AlC 2 The composite material consists of metallic copper powder and Ti 3 AlC 2 The powder is prepared through the process steps of initial pressing-sintering-repressing.

[0018] The preparation method includes the following steps:

[0019] (1) Reduction of metal copper powder: pre-reducing the metal copper powder in a reducing atmosphere to obtain reduced copper powder;

[0020] (2)Ti 3 AlC 2 Obtained powder: Ti 3 AlC 2 Grind the particles to Ti with a particle size of 5~10μm 3 AlC 2 powder;

[0021] (3) Mixing: According to the volume percentage of metal copper powder in the composite material as 60%, the copper powder and Ti are reduced 3 AlC 2 The powder is evenly mixed to obtain a mixture;

[0022] (4) Powder pressing: adding the mix...

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Abstract

The invention relates to the technical field of metal matrix composite materials, in particular to a Cu-Ti3AlC2 composite material and a preparation method thereof. Metal copper powder is used as a matrix phase, ceramic phase Ti3AlC2 is used as a reinforcing phase, and the volume percentage of the metal copper powder in the composite material is 60%; and the Cu-Ti3AlC2 composite material is prepared from the metal copper powder and Ti3AlC2 powder through the initial pressure, sintering and re-pressing processes. By means of the Cu-Ti3AlC2 composite material, the electric conduction and thermalconduction performance of the material can be maintained as high as possible while the hardness and strength of metal Cu are improved, and application of modern industrial electrical contact elementsis achieved.

Description

Technical field [0001] The invention relates to the technical field of metal matrix composite materials, in particular to a Cu-Ti 3 AlC 2 Composite material and its preparation method. Background technique [0002] Modern industrial automatic control systems and electrical devices use a large number of electrical contact elements such as relays, conductive slip rings, brushes, and potentiometers. These elements play an important role in the process of power transmission, electrical signal transmission, or switching on / off circuits. Their performance will directly affect the stability, accuracy, reliability and service life of electrical appliances, meters and overall circuits. Metal Cu is widely used in power transmission systems due to its good electrical and thermal conductivity properties; however, due to its poor strength and insufficient hardness, the material will be subject to certain restrictions when applied to electrical contact components. [0003] Ti 3 AlC 2 The materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/05C22C1/10C22C9/00C22C32/00
CPCC22C1/0425C22C1/05C22C9/00C22C32/0052
Inventor 黄晓晨秦英月李良吴中王传虎凤仪
Owner BENGBU COLLEGE
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